Which of the following Java correctly implement$($s$)$ "random" object as a CPRNG$?$

$1$ SecureRandom gen $=$ new SecureRandom$()$;

$2$ byte$[]$ seed $=$ gen.generateseed $(20)$;

$3$ SecureRandom random $=$ new SecureRandom$($seed$)$;

Java

$1$ SecureRandom random $=$ new SecureRandom$()$ ;

$2$ random.setseed$($System$.$currentTimeMillis$()\%1000)$;

$1$ byte$[]$ b $="123".$getBytes$()$ ;

$2$ SecureRandom random $=$ new SecureRandom$($b$)$;

$1$ SecureRandom random $=$ new secureRandom$()$;